Could it be an extremely aged Cerberus?
Cerberus, Lab description: "Cerberus, the Three-Headed watchdog that guards the gate to Hades. Loyal, dutiful and ferocious to its master’s enemies, but possessed of a distracting fondness for honey cakes and the song of the lyre. A deep, rumbling scent, warm, soft and as cozy as a dog by a hearthfire, but with a fierce and feral soul: deep chocolate, deeper musks, with a dash of fig, bittersweet walnut, and the wild essences of juniper berry, cubeb and rum."
Black musk comes off as slightly floral and powdery to me. I definitely get deep chocolate with this cuddly puppy and I could definitely see this rare being a grab bag imp. It's age and the chocolate would make it very thick!

I really took a gamble on this because metallic scents are usually awful on me but it was a small decant and since it's hair gloss, my rationale was, if it doesn't work out, I'll scent my laundry with it..
Well, it worked. This is the lovely shining gold note (accord, I presume) from The Imperator [Tarot: The Emperor series ] , I think. If not, they're kissing cousins. It smells like, a crown of shining gold light. With maybe some bay and crimson musk. But take that with a large grain of salt because I'm shite at guessing notes. But I can throw adjectives at you all day; this smells like Apollo's golden boy, a white knight, expensive without being flashy, regal, sunlight reflected on water. It's a bit more virile than I tend to wear and not for those who prefer their scents on the traditionally femme side of the spectrum but I'm wearing it this summer. Should pair well with Sportive Sun or any of the Emperor's scents. I think also with Anthony or Titus Andronicus.

I'm going to leave this link here and necrobump the thread. I think you have officially found your tribe. We may be quiet lately because we are probably sniffing ourselves in dark corners all Gollum like. There have been many, many gourmand scents released recently and it's been relatively easy to score decants on the sales threads.
Enjoy the read. I try not to read when hungry BTW because, triggering!

Off the top of my head, these following general catalog scents you should be able to find inexpensive samples of to try? ( these could be in your wheelhouse) and I find fairly androgynous or at least not too girly:
The Lion
Anubis
Coyote
Bloodlust
Fenris Wolf
Golden Priapus
Jersey Devil
Antikythera Mechanism
Tombstone
The Black Rider

It's probably the ambergris in 51 that is doing that sexy masculine thing for you. If coconut isn't a deal breaker for you, Shoggoth is probably the nearest GC in stock scent that is similar to 51.
Also, give Tavern of Hell, Y'Ha Nthlei, and Lyonesse a try. Black Forest may also be in the area of sexy, virile ambergris scents. If you like Anthony, you may like those.
And, if you find yourself an ambergris whore like me, here's a thread for you.
Ambergris shows up also as grey amber and is similar to white amber also which may help you zero in on these heavenly smells...
Happy hunting;)

This is all about the base on me. Just a hint o' spice, no cinnamon detected, and no skin (weal) burn. At first a bit sour but that is not unusual for my experience with labdanum--YMMV. I had sort of written this off as having too many questionable notes--myrrh I can take in small doses or the whole thing becomes bandaid smell or generic powder, allspice is usually a hard pass on me, clove tends to try to take over, and I am not a fan of pimento. So, is this the case of death notes all cancelling each other out, methinks.
Drydown, I am getting a hint of the spice, nothing standing out as dominant, so I cannot really pick out ginger, saffron, allspice, (and none of these notes are wallflowers for me, usually, so they must all be singing in perfect harmony) but the sage is present and adding a mystic quality (which may just be my idiosyncratic way of relating to the note) the clove is subdued (the bitter clove tends to work much better for me) and the vanilla is beginning to round out and sweeten the composition. Patchouli is also a bit sweet to my nose but this is a very mellow patchouli and not dirty or woody. I get zero wood notes from this. The oakmoss sort of came and went (as I tend to amp anything powdery, oakmoss is also a risky inclusion). I do catch a hint of the pimento berry, which I only recognize from the list of notes--not really a stand out and definitely melding with the bitter clove which is becoming a bit more evident as the fragrance hums along. The so-called smoky vanilla is not a woodsmoke or sulfur note. This is like baby bear, just right in many, many ways.
I expect this composition will come together even better with age and become fairly seamless. Does not lean particularly feminine or masculine to my nose. I have many, many resin blends especially patchouli ones and wish this one either kicked up the spicy aspect or better yet had the labdanum go more cola-ish if I was being choosy. What I like about this is that it is not too spicy, sweet, or powdery. Damn the torpedoes, I may be talking myself into a full bottle of this. The dry down gets better and better and that is how this will smell in a year or so.
TL;DR: Old school BPAL with smooth patchouli, vanilla myrrh bridge, a hint of bitter clove and other spice, pairing with syrupy cistus labdanum . This gorgeous, classic, androgynous resin blend is skillfully balanced and unquestionably will age into bass note perfection. It's pretty timeless too, could be worn regardless of the season.

Think you have plenty of Amber patchouli scents? Well make way for one more because this one is gorgeous. Less pumpkin foodie and more snuggly sugary patchouli.
I'm struggling to find words to capture the beautifully blended masterpiece but if you Google the namesake the cuddly fuzzy golden fur is what I think of with the scent. There's no Punkin Spice in this, if any pumpkin is appreciable it's fresh gourd.
It's definitely a warm, golden Amber with soft, smooth and slightly sugared patchouli and a creamy almond. The patchouli is different from the Silkybat one though. More vegetal floral than dirt or wood...
I will definitely have to upgrade to a bottle. This is the pinnacle of Amber patchouli union and will pair well with the many autumn Amber or pumpkin oil perfumes.

Surprise hit for me. It should have hit me over the head as this has quite a few notes of win so I'm wondering now why I hesitated...but perhaps it was the "tea leaf" note, which I hoped was literally tea and the black or green variety. Ti leaf is more of an evergreen note and that's not what's contained. But I digress...
This started out a lovely Earl Grey tea with it's bergamot and I'm guessing green tea as white is often too high pitched for my enjoyment. There's a lovely ginger inclusion which gives a gentle nip, not full on bite. No smoke note which is fine with me.
The drydown is a gorgeous incense, amber, and maybe bourbon but the last note wasn't very present although may be lending a mellow, rounded character to the heart and base. This is unquestionably my favorite bat!

Like soupytwist, this started as cherry syrup for me. I considered scrubbing but hung in out of pure curiosity. It wasn't an unpleasant experience, just something I don't necessarily want to smell like. There's a metallic twang suggestive of blood too. I think this one is for folks who are in it for the sport?
The cherry opening was dramatic and very quintessential BPAL , similar to the smell of general catalog Blood with less clove but the middle phase is just odd. It's a bit tough to describe, as I'm lacking in a frame of reference. That's why I suppose antiseptic ointment comes to mind. There's a hint of the blood metallic note, a hint of cherry but it's more like that organic cherry cough syrup bark stuff I've purchased at Natural Grocers. It's not cloying, artificial, or sweetened cherry. It meshes with the cola vibe of the laudanum. My memory association here jumps between rockrose and antiseptic ointment. Could there be a hint of saffron too, or is it just my imagination running away with me?
The late drydown was actually very nice, resin syrup cola; similar to the single note Rose of Sharon, which I loved and bought a back up. As with soupytwist, my skin eats the cherry note and I am left with just laudanum. The antiseptic association is absent also. This was comforting but close to the skin. This was never heady, perfume like, or euphoria inducing as many of the Lab opium scents become on my skin.
I can understand why this was not a highly sought after decant but I'm glad to have tried it. I rather like the base notes and I plan to retry this in a few months to see if it changes or if the scent development produces better sillage of the drydown phase as they have tendencies to do. I'm chalking this one up to those experiential scents that folks enjoy with the Lab because they're unique. I consider a bottle, but at this juncture, I have to limit my collection to scents I love enough to wear frequently rather than when I'm of a mood. I wouldn't be surprised if it grows in my mind and I end up getting more decants or a bottle, as I really liked the resinous drydown.
For the curious, my Google Fu revealed interesting history behind the recipe development for laudanum: The original recipe for the potent tincture is attributed to physician Thomas Sydenham, known as the father of clinical medicine. Sydenham’s tincture included two ounces of opium, one ounce of saffron, a drachm of cinnamon and of cloves, dissolved into a pint of Canary wine...

Rudolf Koller
Grapevine and ivy, olive blossom, lavender, cypress, bay leaf, honey myrtle, Tuscany sage, and jasmine sambac.
This one is mostly a yes on me. I didn't bottle it unsniffed because I dislike grape but this definitely smells of grape vines not leaf or fruit. Oddly, honey myrtle has been problematic before also but it's balanced by the sweet and floral notes.
Open, wet is definitely the highlight of this cabrito for me, it was lovely osmanthus, grapevine (I've smelled those in vivo, this is my first encounter in vitro) and a zingy ivy but just a hint.
Drying, this has gone mostly floral with jasmine sambac bitch slapping the tamer plant notes. The sage and cypress are in subdued support.
This unfortunately becomes a jasmine dominatrix scent which means I may now have an amplifier problem whereas I've previously maintained a mostly symbiotic relationship with it. I'm probably going to pass up a bottle upgrade but I loved the top notes. I'm going to search for a partial I think or a few more decants and try this in a scent locket because the wet opening was everything I wanted from this. Plus, label art = adorbs. It's definitely a purchase factor for me.

Tried this goat because zhe sounded from the notes roster like a previous Weenie I enjoyed (Witchcraft Scene) but in honest disclosure, I didn't compare the notes nor did I view again before "blind testing. "
Patchouli is the note that stands out as familiar but it doesn't rule this roost, it's probably the only one that I can recognize without a list of notes. This is delightfully green, evocative of the inspired art, and artfully balanced. I'm in love with it and need a bottle. I'm always looking for green, plant like scent but I have quite a few forest and grass inspired ones; this is different, happily.
It's honestly too seamless or perhaps my nose is still amateur, but nothing stands out except the Patchouli which is woody not dirty and quite smooth with a hint of zing from the pepper, which is reminiscent of ivy. The oudh is mellow and not animalistic or fecal. I'm really okay with those type of scents (must be that unconscious attraction, blame my moon in Taurus) but this is different. I thought the sandalwood would be dry but it's kept in check by the more juicy resins. Agree with zeezee, there's a suggestion of Lily but this plant party is more shrubland than meadow with flowers or woods. Think steppes bordering the foothills of a drier mountain area and that's what this reminds me of. Natural habitat for goats really!
Don't let the notes intimidate, this is a unisex win. The sillage is more intimate than I prefer but the decant is new and only rested a couple of days after it's voyage. Also, I was light on the application.